Need to see 2 engines with the same build except the pistons, instrumented and tested on a calibrated engine test rig on the same fuel at the same time. - Specific fuel consumption (g per kwh) - instrumented pistons for temp - exhaust gas analysis.

Would like to see lifespan results. Teardown analysis at 60k, 100k, 150k, etc

I can't wait for Gale Banks to get a hold of a set!

As a mechanic here, this sounds like Magical Pistons. I'd love to see some Dave tests on these Pistons!

Can’t wait for you to do a video on a build or rebuild using that style of piston. Very interesting stuff. Thanks for sharing Dave. Take care and stay safe.

This has quickly become one of my favorite KZfaq channels. Thank you for sharing your knowledge. Please keep the videos coming as ive watched every single one on your channel so far, and it's boring on this app until I see "Daves Auto Center uploaded a new video to their channel". Haha keep em coming !!! God Bless.

The fact that they are willing to go to a shop with the equipment in it shows they aren't trying to hide. Would definitely be interesting to see a unbiased review from this shop

"Without testing and science it's only speculation" -Dave ....best quote ever!....

I really Hope Gale Banks gets a hold of these guys and makes a video on this tech

Dont forget this guy has a product to sell, lets see long duration in production testing

In my 19 years of automotive powertrain testing experience, this appears to be a good product idea but is giving me a little too good to be true vibe and another "re-inventing of the wheel". I'm not opposed to seeing more on this but I find it hard to believe timing events haven't been changed as well as the amount of injections per cycle since both of these things have a huge effect on diesels combustion noise. As good as it is being sold, it makes you wonder why this concept hasnt been being utilized by cummins.

As a physicist, 13 to 16 mpg seems unreasonable. In the end, efficiency is physics and the only way you increase efficiency of the diesel cycle is by increasing compression ratio, increasing temp, and decreasing the temp sink. Their pistons might provide a higher compression ratio. The ceramic top might reduce heat loss (higher temp), and the heat sink (atmosphere) is going to be the same. I’m not sure you can get 20% more efficiency from these changes, and then add in environmental emissions considerations, and that makes me more skeptical. Maybe, but this definitely falls into the “show me” category.

Automotive engineer here, Absolutely Amazing! There is so much potential in the combustion engines.

It's amazing that a piston and rings can make that much of a difference.

Noise... flat surfaces reflect waves. Curves too, depending on frequency. Break that geometry, and resonance is attenuated.

I got out of car and truck work 24 years ago as a 4X ASE master with L1 and L2, and this is unimaginable stuff. Kudos to the development team.

Amazing how much innovation that still continues to happen on combustion engines.

The ceramic coating and porous surface makes sense, it definitely seems as though it would cut down noise levels in the engine.

Dave, have you verified the results on your own?

My 1974 Merc Cougar XR7, when i ported & polished the Elderbrock Intake i put in golfball dimples inside just by hand, 1992 when i had that 400M (0.020 over) out. Had lots of fun in it over the decades. Was stationed at Edwards AFB working on B2 at the time :) all of them were just under the carb & inside the runners where a die grinder w 1/8" carbide cutter fit too. No idea or dyno testing but managed 17mpg for a long time.😊

This channel is the definition of KZfaq ,every single video he posts are things that I really want to watch , what a time to be alive.

Racing MX I got some insight on squish shaping of heads and scalloping of intake ports. This is next level and very cool!

What happens when those dimples get filled with carbon build-up?

Sorry Dave, if these pistons really are that much of an improvement in power and emissions -- then why hasn't every OEM started putting these in production engines? I'd like to see Gale Banks test these pistons on his dyno and measurement setup and your own real world engine builds. Make this sceptic a believer.

Correctly sized rod bearings make a diesel quieter, too.

We tested this on a wet flow bench. So we took 318 heads one we put HUGE dimples into combustion chamber, one we roughed up 40grit, and one we polished. The wet flow showed the dimples and rough surface worked well to stop pooling of fuel. With polished HORRID combustion chamber of 318s it puddled on head didnt get complete "burn" or atomization AT ALL. So there is some truth to this in keeping fuel in air. Direct inj fixes that obviously. But im interested in what benefits on head of piston would be. Our dimples where much more close to each other. But it did work. Wow the noise is way reduced

This is easily one of my favorite videos from you guys! I would LOVE to see more in depth content from the Monster Engine side of things with engine break down and builds!! Either way, great content guys and happy to watch the growth! If you guys end up needing a well trained CNC Machinist, i would be willing to travel to work for a great company like you guys!

This channel just continues to grow to be better and better. I just love and seriously appreciate the effort you guys put in, in achieving absolute excellance in automotive engineering. The way that you guys do not close your eyes and minds to new ways of doing stuff, is testament to your commitment in constantly moving the whole internal combustion industry forwards. Im just off to watch this video again, it really is solid gold stuff. Many thanks David in the UK.

AMEN DAVE & CREW! :) I love nothing more than turning on youtube and checking out your videos and learning from them. My 2 kids 7 & 5 say can we watch The Motor man on youtube. Honestly guys love what you are doing not only in your shop but online also. Been watching for a few weeks now and been meaning to say thank you. Not only is it about motors but also relevant in life also. All the way from Gold Coast Australia. Luke.

Thanks for the videos! Bill and Ernie Elliott were using The golf ball dimpling on pistons and combustion chambers. Since the 1980’s in Nascar. Until someone let the cat out of the bag, and then Nascar changed the rules to a lower mandated compression.

Dave i like your stuff so far. You seem like a straight up, honest guy who has spent years perfecting his craft or trade. Can't wait to see more on this. Increasing power, economy, longevity while lowering maintenance seems like the golden ticket.

Thanks for sharing Dave. I have been hearing about this technology for a few years now but never had a chance to do any testing myself, so keep us updated on any installations or testing you do.👍👍👍

Hello from England, 🏴󠁧󠁢󠁥󠁮󠁧󠁿 I came across your channel by chance and really enjoy listening to your content. Look forward to seeing you on Discovery Channel.

This is pretty incredible. I noticed how much smoother my 6.7 was when I started using scheaffer oil. Add those pistons holy crap

Since they build motors it’s simple. Dyno test a motor with standard pistons and then change them out and test again. Do a ,”calab”.

I remember back in the 2000s on carbed dirt bikes (cuz the 1 cylinder setup) the dimped intake ports was a thing. Even dimped intake valve. It helped the fuel atomization in the air and gives less fuel condensation on the walls. I think it is something similar can happen, increased atomization in the cylinder, better burn. Oh this atomization was just mentioned at 13:50 hehe. It would be nice to see how the hex shaped area in the piston affect the burning, and the flame shape. Looks like a lots of thought went in the piston. Great work, hats off! Can't wait for the upcoming videos with this piston.

Idk what to say.....I'm sure Dave has a set of the trick pistons coming and when he tells us it's for real....well then I'm sold..👍🇺🇲

On a 2 stroke dirtbike engine, the squish factor comes into play. If the compression is uneven, you build hot spots. I might dimple my next piston just to see.. Pretty cool idea.

Looks and sounds like a winner Dave, I have worked diesel service and repair for all of my life but never knew this type of piston was available. I remember when Slick 50 came out and it was awesome to quiet down a Diesel engine. Wynn oil for transmissions, Minneapolis Moline G1000 had this howling noise that would make you deaf. Keep up the great work.

I dunno squat about motors but this channel is Fantastic!! Great job Dave & Team!! Wonderful and informative videos!!

Highly persuasive. We need you to test a car for noise, temperatures around the engine exhaust emissions chassis dynamometer for power and torque objective road test for acceleration and fuel consumption . Then you pull the engine change the pistons and repeat all the tests. If you can show positive improvements we will believe you - then they will become standard fit for rebuilding everything everywhere .The theory does sound credible - no doubt they will be much more expensive at least initially - but if this is true it is staggering .

I love this stuff Dave. Those pistons are some real "Rearden Metal" style development. I'm sure you'll get some blow-back like "why try customers with an untested product?" Well, what can you say: "I trust my own judgement".

Hey Dave, you and your team are the best! God bless you guys, cant wait to see the show! Thanks dude!

I love this Channel! Learning a lot from Dave and the crew... keep up the great work.

But what about the longevity of the pistons? Do they wear out after 20000 miles?

Dave thank you so much for teaching me about the new pistons your channel is great keep these types of videos coming

Looking forward to it! 2 of my favorite Automotive Channels for sure!

I don’t work on cars anymore but damn I love this channel.Dave you have to be the most honest boss ever.Thanks for letting us ride along with you and the guys.

Dave's thumbnail face is the face my friend made when I told them what I'd do for a Klondike Bar.

If this piston is so great and giving a 25% increase in fuel efficiency, much longer oil change intervals and decreased exhaust temperatures, WHY are the manufacturers not using it? WHY is this being sold as an aftermarket engine rebuild and not for the OEMs to just make them with these pistons in the first place? Imagine the look on engine manufacturers executives' faces when you tell this simple part means 25% increase in fuel efficiency and longer oil change intervals and better emissions!!! They would be breaking down the doors of this company ordering millions of them.

I can't wait to see both of you collab. Good stuff. Keep on doing what you do.

I race jr dragsters in late 90s early 2000s. One of my engines intake port was dimpled like a golf ball, it was a very ahead of its time and fast engine.

Dave I used to be a mechanic and I was surprised by this piston! Pretty cool if it really works? BTW I really like your channel. You're not afraid to comment on a bad design and as a mechanic I've seen lots of bad designs, so I subscribed to your channel. Keep up the good work.

I've seen some interesting results from dimpling piston tops and head ports, both intake & exhaust. Dimpling ports increases the volume but has the benefit of keeping velocity about the same, which is important. At least that's the theory. For pistons there are probably benefits in cylinder filling. The ceramic coating has advantages on its own too. I wonder if they've independently done tests of each application to see what differences there are. They probably have.

Dimpling has been used for years in motorsports and 2 stroke applications to "clean up" inefficient combustion chamber design. The idea is to read the piston crown for gaswash in the carbon, and introduce dimples to create turbulence and ignite the stale areas for an even flame front/burn. The same idea as unshrouding valves, removing sharp edges and blending valve reliefs.

Every episode is a much watch for me . Great facilities and common sense .

You had me at mining application and WW2 aircraft engines.

THIS is a Direct result of the great Show of MYTHBUSTERS where they tested wind resistance of vehicles that were dented all over the vehicles with golf ball sized dents and they proved it provided greater fuel mileage.

Awesome presentation!!! I have never heard of the dimpled pistons, until now... Very interesting.... The Total seal rings , I have heard about for a long time... And they are really nice...

I recently had speed of air piston put in my 6.7 Cummins from my 2020 Ram 5500. Results are, Engine runs smothers, less vibration Very quiet running. Have only run about 3000 miles so far so I'm waiting for more break in before pulling firm fuel efficiency numbers. But it's looking good.

Dave gentry and son trucking out of Tennessee is already put these pistons in a 12 seven Detroit and they have worked out very well for him

You know what could really use those pistons is a 7.3 or a 6.0 The dimple doesn’t surprise me on sound, VW reduced their diesel noise by adding a big dimple in the cylinder head

I know it's an old engine in the minds of most, but... some of us folks driving 1.9L TDI 4-inline engines in Volkswagens would LOVE having this as a modify/rebuild option. There is a shocking number of them on the road, worldwide.

you MUST meet Lake…. I worked with his dad and Lake Jr is of the same character and has incredible KNOWLEDGE! Lake Speed is the cat`s meow!

Very interesting, I too need more independent proof. But I'd sure try it if I'm doing a rebuild

I love this channel. Thanks Dave!

I’ve used gapless rings from total seal in many of my race engines….they do work…. In fact one engine in particular comes to mind……a Hot SBF stroker engine was built with conventional style rings…(good rings) After just a few thousand miles an oil residue was noticed in the throttle body from the crankcase vent return….engine ran great with Great compression and didn’t burn oil….that winter the engine was pulled and a few things were done to it ….total seal gapless rings was one of them…for the next 2 seasons of drag racing and street driving there wasn’t any oil residue in the throttle body…engine ran better than ever and picked up almost half a sec in the quarter…(big gains in the drag race world) not sure how much the rings helped with power but I’m sure they did help.

Going from 13mpg to 16mpg = $576 per 10k mi at $4 a gallon ( UT, salt lake basin price as of 3/11/24) . This yealds a 9month ROI for my 25k per year based on, The Diesel Podcast, speed of Air interview price point of $1025 for cummins 5.9. Less if you discount the price of stock replacement slugs.

Gale Banks Gale Banks Gale Banks

Wow, all of these arm chair engineers not getting the message you’re watching… United engine machine is a “piston”developer “… even Dave says he skeptical as he is a engine rebuilder engineer / with years of experience…. At least we have a company that’s wants to “improve “ longevity of pistons design that has a “patent”… which means… vehicle manufacturers would have to buy the product as they buy materials from various venders….. lowest bids wins the bid….. please don’t go off the rails …. I have no dog in this fight, but kudos to United Engines and hope to longevity of your pistons building technology… I hope this pans out…. And Dave for your vast experience and a yearn to learn more for the industry knowledge … love your channel

Exciting piston technology premiered by Dave’s Auto Center. Thanks Dave!

It's so intersting, i wasn't know this technology. Thanks to share with us Dave👍🙏

Speed of Air technology is something new, I’ve asked if they would make piston’s for my old 7.3 but they have no plans, they make the pistons for 6.0 liter Cummins and Cat.

This is pretty much like engine additives, they are meant to be sold. There is no distinguishable power difference. But from experience in testing different surfaces and coatings, it does not improve airflow to have these in cylinder heads, combustion chambers, or pistons.

I'm tuned in. Thanks for putting out something really interesting Daves Auto Center.

So you put these pistons in a 6.7 Duramax, add in some Bank's upgrades and AMS oil ... I want to see that build plus all of Dave's upgrades.

I'd love to see 2-3 different engines, 100% stock, run on a dyno for several hours each. Record power, emissions, take oil samples, etc. then do nothing but change the pistons and rings then repeat the same tests, collecting the same data.

I've seen & heard of these @SpeedOfAir dimpled pistons for a year & a half or so now. From what I've seen\heard\watched they seem to be a very dramatic change in something like a piston thats been pretty much the same for decades if not a century or more. Adding the dimples has shown increased MPG in various vehicles of 10, 15, 20% depending on what else is going on. Thats alot of increase when your talking about a OTR semi truck going back & forth across the country every week of the year. It's like a really good increase in the combustion cylinder leaving less un-burned fuel, & overall just a cleaner exhaust coming out of the pipe\stacks. Who woulda thought golf ball dimple technology would make it into the internal combustion engine on piston faces? No one! It is crazy to see improvements like this after being the same for so long! Id put these in my 7.3 in a second....if i ever had to rebuild it cause it died, cause it probably won't. Comng up on 300k miles in my '00 f250 7.3 zf6, with nothing other than normal wear & tear maintenance stuff & I just put a new(reman) set of injections into it last summer. Shes still going strong as can be!

Channels that have honest content like this make the world a better place.

If it what they said it is more power more mpg and less emissions it be a game changer for the trucking industry

Love this channel. Keep up the work boys

Very exciting. Looking forward to seeing one of your engines with speed of air pistons and results after

Go to a race track and listen to the TDI cars go by. Almost silent. Audi engineer said about a decade ago Noise=Lost Energy. Find ways to eliminate noise (through engineering) and capture more energy.

Fascinating! I'd love to see a production diesel sedan with these pistons someday

Been out of the business almost a decade yet strangely fascinated by your channel. Can’t wait for and hope you get your tv show.

Excellent video Dave. we have also been collaborating with speed of air, UEM, and total seal, with a performance gasoline version of pistons & rings, currently being tested, and documented. The results so far, are nothing short of incredible.

You do a good job getting information out one of the good videos to keep it up thank you

Do y'all know Mark "the beard of knowledge" from Pawn Stars? I never would have guessed he had a brother who was a gearhead!

Two videos in one day. This, this is good.

Cant wait for the total seal video! This pistón has my nerd brain going wild with ideas! Its not New technology But seeing Hard data showing so much more efficient numbers across the board has me wondering about how the rings will do. Supposedly their not good for daily drivers But I want to hear it from the man himself what these rings are capable of! Awesome video as usual dave! Keep it up!

Lake Speed Jr shoutout to. If you want to learn on piston ring tech and oil follow him. Love the videos Dave great info

Really cool stuff. Keep up the good work.

If these pistons really increase fuel efficiency by 25%, then Im sure the EPA will quickly ban them...per the oil industry lobbiest.

Gentry & Sons Trucking is running them in a 12.7 Detroit and is very happy with them. Very clean exhaust more power and better fuel economy.

I was just looking at these pistons a month ago and was thinking, I wish someone with the knowledge would take a deep dive into what they claim is true. I'm like you I was skeptical about it but the more I research it seems like great technology. Thanks for posting the video

do they also sell timeshares?

I remember my friend building small block chevy himself and he ported the heads and pistons with a golf ⛳️ ball dimple. That technology has been around for years.

Ive been following SOA for a long time, love to see more of them. They make pistons for big rigs too, which is where my interest is beings im a trucker. Figure 20 percent increase on a over the road truck......a lot in savings!

Dave has the best information n trades ever. I greatly appreciate him sharing his knowledge

No blow by into the crank case...hundreds of Toyota Engine designers just said to each other.......Did you hear that?